The 9th EUROSIM Congress on Modelling and Simulation, EUROSIM 2016, and 57th SIMS Conference on Simulation and Modelling, SIMS 2016, were arranged jointly in Oulu, Finland, September 12-16, 2016. The Federation of European Simulation Societies (Eurosim) was set up in 1989. The purpose of EUROSIM is to provide a European forum for regional and national simulation societies to promote the advancement of modelling and simulation in industry, research and development. The congress was organized by Scandinavian simulation society (SIMS), Finnish Society of Automation and University of Oulu. SIMS was founded in 1959. The event was co-sponsored by the IFAC Technical Committees on 3.2, 6.1, 6.2, 6.3 and 6.4, the IEEE Computer Society and the IEEE Finland Section. Networking events were organized on three levels: Federation of European Simulation Societies (Eurosim) had Executive Board and Board meetings; Scandinavian simulation society (SIMS) had Board and Annual Meetings and Finnish Simulation Forum (FinSim), founded in 2001, had Board and Annual Meetings.

The overall management was done by the Eurosim Board, consisting of representatives of 17 European Simulation Societies lead by the Eurosim President Dr. Esko Juuso. The NOC was chaired by Prof. Kauko Leiviskä with Co-Chair Dr. Esko Juuso and Vice-Chair Industry Dr. Timo Ahola (FinSim). The IPC Chair Prof. Erik Dahlquist (SIMS), Co-Chair Prof. Bernt Lie (SIMS) and Vice-Chair Industry Dr. Lasse Eriksson were leading the IPC which consisted of 49 scientists. The Publication committee was chaired by Dr. Peter Ylén with C-Chairs Prof. Lars Eriksson and Prof. David Al-Dabass. Eurosim and SIMS Boards were in the IPC. Eurosim members participated actively: 20 Eurosim countries from 14 member societies participated the congress.

The congress had a multi-conference structure with several special topics related to methodologies, functionalities and application areas. The programme includes invited talks, parallel, special and poster sessions, exhibition and versatile technical and social tours. Plenary presentations covered versatile topics: Thermal management within power engineering, Electric arc furnaces, Autonomous driving and traffic maneuvers, Simulation benefits to the mining, mineral and metal industry, Composition of the atmosphere and biophotonic applications.

The congress was very international: there were 181 participants from 33 countries. There were participants from all the continents, except Africa, but there were co-authors also from Africa. The program included 6 plenaries, 175 regular oral and 7 poster presentations. The focus was in Europe: 1/4 from Finland, 1/5 from other Nordic countries and 1/3 from other European countries. Far East was active: 26 participants, where 18 from Japan. In addition, there were 13 participants from other areas (Middle East, Americas and Australia). In total 22% of the participants were from outside Europe, almost as many as from Finland.

including 165 full papers: DOI for each article starting with the first article where the last digit is the article page number on the starting page: 10.3384/ecp171421. Just replace the digit 1 with the page number on the first article page for each article (8, 19, ..., 1122).